Device for use in truing connecting-rods



A. HAMMOND.

uEVICE FOR USE IN TBUING CONNECTING RODS.

APPLICATION mm 001.14. ma.

i P t t d ar. 9, r J

1 g is a W W W IIIIIIIIIIIIIIIIIA 'IIIIIIIIIIIIIII UNITED STATES AMIL HAMMOND, OF B00233, IOWA.

DEVICE ESE. LB-E IN TBTJING GGfi'HECTITNG-RODS.

Application filed October 1-1, 1918.

1 b all whom it may canoe rn;

Be it known that l, AMIL .E-l \nwyxo, a citizen of the nited States. and a resident of Boone, in the county of Boone and State of Iowa, have invented uceriuin new and useful Device for Use in Truing Connect ing-Rods, of which the following is a epoch fication.

The object of my invention. is to provide a device of sil'nple, and inexpensive construe tion, whereby connecting rods may be tested for finding defects therein, so tlmt the con necting rods our; then be straightened for making the axes of the journals of the opposite ends of the connecting rods correctly parallel with each other.

With. these and other objects in view my invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter more fully set forth, ointed out in my claims and illustrated in the accompanying drawings, in which:

Figure 1 shows a side elevation of a device embodying my invention, with a connecting rod installed thereon.

Fig. 2 shows a top or plan view of the same.

Fig. 3 shows a transverse, vertical, sectional view taken on the line 3-3 of Fig. 1; and

Fig. 4 shows a transverse, vertical, sectional view taken on line of Fig. 1.

In the accompanying drawings I have used the reference numeral 10 to indicate generally a solid base which may be firmly mounted on a bench or other support. At one end of the buseis a pair of spaced upright members 11 forming journals for a shaft 12. I

At the other end of the base 10 there is mountcd a carriage 13 for longitudinal siirlin movement with relation to the base.

dhe carriage 13 has at its opposite sides guide members 14 adapted to court with a guide member 15 on the base 10 and a guide strip 16 respectively.

The parts are of such material that the working of the carriage 13 will be very true.

In one of the carriage members 14 is mounted a series of screws or the like 17 by which the carriage may be locked in any position of its sliding movement. The carriage 13 is provided with laterally spaced,

Specification of Letters Fe tent.

Patented Mar. 9, 1920.

Serial in). 257,927.

horizontal slnnildcrs or tables is, and just rcurn nrdly thereof with vertical shoulders ii).

In the use of my improved device, one journal 20 of a. connecting rod 21 is mounted on the shaft 12 which is removable, and is snugly fitted thereto by means of hardened steel bushings 22.

I use a great variety of these bushings which are of the some internal diameter to lit the shaft 12, but have difierent outside diameters for fitting dili'ercnt connecting rod bearings.

After the proper sized bushing 2'2 has been placed in position the she ft is mounted in position, us illustrated in Figs. 2 and Steel bushings 23 are placed on the outer ends of the shaft 12. V

A shaft 24 is provided through the other journal 25 of the connecting rod 21 and is snugly fitted thereto by means of a steel bushing 26.

A great variety of the steel bushings 26 are used, all of the some internal diameter, but of different external diameters so as to fit different connecting rods.

After the proper bushing has been inserted in the journal 25 and the journal 25 has been properly fitted to the shaft 24, there is placed adjacent to each shoulder 19 a vertically faced, hardened steel plate 27 and on each table 18 n similar plate 28.

It will be understood that the plates 27 :md .28 are always fitted, so that the surface of the plate 27, adjacent to the shaft 24, and the upper surfaceof the plate 28 are always exactly at a right angle with each other and with the true central axis of the journal 20.

it the connecting rod 21 then swung from raised position (lowmvurdly until the siurli' ii is adjacent to said plates 27 and 28, it will be obvious ihut if one end of the shaft :21 engages one ofthe plates 28, While the other does not, then the axis of the journal 25 is not parallel with the axis of the journal 20, end the workman will be able to readily ascertain what adjustment of the connecting rods should be had.

Similarly, if one end of the shaft 24 engages one of the plates 27, and the other end of the shaft 24 extends spaced from the other niate 27. it will be seen that the connecting rod is not true, and the Workman will be able to know what to do to true it.

it will be obvious that the carriage 13 may be readily adjusted longitudinally of the dering in various jJUhll'lUlb of its sliding mm'vmom, mid carriage having a pair of -pn rvd lnn'izumnl tables and a pair of lati-mlly r-in|IWl qertical shoulders, plaies mmmtml on said shoulders and tables with llllll rum-r .wu-imrew exactly parallel with lav ax ml ni jfflll'llillffl 2t shaft designed ii) iii in said juiilnnls, u bushing for sakl lizi'lt ili :-i |nl in if in a journal of a connwting 5196i :1 Sl'L'UlHl shall designed to rest. :nljnwnt in Sillii [1l:Il0H,;1ll(l :1 bushing therenli tli' l jl|t l (M iii ilw nllllvl journal of a COTF nvi'llngi' l'lHl.

J. In :1 (llYll'l' of the class described, :1 haw. liming :1 pair of spaced, ullned jourl]2ll ll vuii'ingv mminlul on said base and mlnplml 'fm' mnvmucnt toward and from \Ellll jHll'llZlli. said (illl'lflgO having spaced iiill'lfllilm pmwming surfaces lying in the Hilllll plane whivh i pumllvl Willi the axis Ml Mllll ioul'lmls 22ml paw-smiling other SUP-- l'zuvs arranged in :1 ('nmmvn plane at right- :mglv in Hillkl first nnmml plane and also iuilnlltl will: will journal axis.

[)w Mninvs. 1mm. September 27, 1918.

AMIL HAMMOND. 

